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Analytic Approach for the Pion-Proton Scattering Phase Shifts

Description: A simple method of solving for the phase shifts of the pion-proton scattering is presented. The rapid solution afforded can be utilized, as the Ashkin diagrams have been employed, to give starting values to an electronic computer or alternatively to analyze with more ease the variation of the phase shifts as a function of the input data in terms of the coefficients of the angular distributions. A new plot of a function of the total cross section versus the pion energy is introduced. The nearly … more
Date: December 7, 1955
Creator: Rarita, William, 1907-
Partner: UNT Libraries Government Documents Department
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Research on Uranium-Base Alloys. Part I, Transformation Kinetics of Uranium-Base Alloys, Final Report, November 15, 1952 - August 31, 1955

Description: Information concerning the transformation kinetics of the gamma solid solution of uranium-base alloys is important. Accordingly, the metastability of the gamma phase was investigated for nine uranium-rich alloys of the U-Mo-Pt, U-Mo-Nb, and U-Nb systems. Samples were encapsulated in Vycor bulbs, solutions treated at 1000 decrees or 1050 degrees C, quenched to and annealed at temperatures between 600 degrees and 300 degrees C. Techniques employed to follow transformation included metallography, … more
Date: September 30, 1955
Creator: Van Thyne, R. J. & McPherson, F. J.
Partner: UNT Libraries Government Documents Department
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Pressurized Loop membrane Demineralizer Tests : Final Report [for] January-June 1953

Description: A membrane demineralizer has been tested in a pressurized loop. The loop water resistivity was maintained in the 1-2 megohm range by ionized solid transfer in the demineralizer. The size and power requirement of the unit tested per gpm flow through the unit, were 2.3 cu ft and 100 watts. In view of the fact that present designed could reduce the size and required maintenance, further studies may be warranted.
Date: September 15, 1954
Creator: Rosenberg, N. W.
Partner: UNT Libraries Government Documents Department
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A Simple Sweeping-Image Camera (Chronograph) with 10-8 Second Resolution

Description: A sweeping-image camera design of flexible application and easy construction is described. It is equally useful for bread-board, optical bench, or completely engineered construction. The heart of this camera is the optical train which consists of a collimator lens that renders the light from the image points into parallel beams, a rotating mirror to sweep these beams in an arc, and a box camera set at infinity focus to receive the reflected beams. The sweeping light beams form images which move… more
Date: 1955
Creator: Brixner, Berlyn
Partner: UNT Libraries Government Documents Department
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University of Michigan Project for the Study of the Biological Effects of Irradiation for the Period of January 16, 1955 to January 15, 1956

Description: Progress report includes reports on (1) The isolation of pyrimidine deoxynucleotides from the acid-soluble fraction of thymus; (2) Non-specific protective effect of small lead shields against the lethal effects of whole body irradiation in the rat; (3) Strain differences in response to whole body irradiation and shielding procedures in the rat; (4) Renal clearance procedures in an evaluation of the effects of X-irradiation on renal function in a rat. A preliminary report; (5) The plasma erythro… more
Date: 1956
Creator: Potter, Richard L.; Bethell, Frank H. (Frank Hartsuff), 1903-1959; Bohr, David F., 1915-; France, H. O. (Horace Owen), 1915-; Gomberg, H. J. (Henry Jacob), 1918-1995; Gould, Sylvester E. (Sylvester Emanuel), 1900-1970 et al.
Partner: UNT Libraries Government Documents Department
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Flotation Characteristics of Florida Phosphate Leached-Zone Material, Progress Report No . 7

Description: Although the results reported herein are rather encouraging and show the possibilities of utilizing flotation to increase recoveries and in some instances grades, they should not not be considered an optimum. As stated previously, time did not permit a detailed investigation of all reagents an conditions to obtain maximum grades and recoveries, but sufficient data, with enough typical samples, have been obtained to indicate a definite trend and encouragement for further studies. A comparison of… more
Date: December 20, 1955
Creator: Snow, Robert E. (Robert Ellis)
Partner: UNT Libraries Government Documents Department
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Numerical Calculation of Blast Waves in Non-Uniform Atmosphere

Description: The problem of a blast wave propagating through an inhomogeneous atmosphere is set up for computation by the CRC LORA. Previous treatments of this problem have used various simplifying assumptions such as that of purely radial flow. Since, however, pressure gradients in this situation will not in general be in the direction of rays from the blast center, non-radial flow will exist, and there is reason to believe that for large distances this effect will play a prominent role. Therefore, a progr… more
Date: November 15, 1954
Creator: Fife, Paul C.
Partner: UNT Libraries Government Documents Department
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Datatron digital Computer Program for least-Squares Analysis of Variance

Description: A digital computer program for calculating least-squares solutions and making analyses of variance of sets of overdetermined linear equations is described. The entire code is reproduced with sufficient description of the program to enable anyone familiar with the Electrodata Datatron Computer to use it for similar problems.
Date: July 1955
Creator: Rollett, J. S. (John Sidney)
Partner: UNT Libraries Government Documents Department
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A Simple mechanical Calculator for Solving Transmission Line Equations

Description: A simple mechanical calculator has been developed for solving the transmission line equations when the characteristic impedance is a variable. The speed of computation is some two orders of magnitude faster than analytical methods. The theoretical basis is described and also the way in which it can be used. Some representative problems, which have benefited by us of the calculator, are discussed.
Date: 1956
Creator: {{{name}}}
Partner: UNT Libraries Government Documents Department
open access

A Method for Monochromatizating and Precise Point Focusing of X-Rays and its Application in Low Angle Diffraction Studies

Description: A principle for bending crystals with a minimum of strain so that they will focus x-rays and gamma-rays accurately to a point is explained. Detailed calculations are made of the aberrations in the foci resulting from various applications of the principle. the application of the principle in making a point focusing monochromator for low angle x-ray diffraction studies is discussed, and theoretical and experimental determinations of the reflection coefficient of the crystal are compared. A few ex… more
Date: April 1955
Creator: Berreman, Dwight Winton
Partner: UNT Libraries Government Documents Department
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Studies on the Experimental Pathology and Biochemistry of the Pulmonary Granulomatosis of Beryllium Workers. Section II, Consolidated Progress Report. Supplement: a Review of the Physical Chemistry of Beryllium

Description: The status of research is reviewed in a study of pulmonary granulomatosis in beryllium workers. Equipment for use in dust exposure studies is described. Preliminary results are reported from studies on the tissue distribution and pathological effects of beryllium dust in rats; the physical chemistry of solutions of beryllium salts; the effects of beryllium on enzyme systems, and the effects of ascorbic acid on beryllium excretion.
Date: April 25, 1955
Creator: Schepers, G. W. H. (Gerrit Willem Hendrik), 1914-
Partner: UNT Libraries Government Documents Department
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Angular Distribution of Fragments from the Photofission of U238

Description: Ilford D1 and Eastman NTC nuclear emulsions have been loaded with a solution of uranium acetate and them exposed to the X-ray beam of the Case betatron operated at 18 Mev. The developed plates have been searched wit a Zeiss type microscope. A total number of 1062 fission tracks have been measured and analyzed and the angular distribution of the fission fragments in center of mas system has been obtained.
Date: 1955
Creator: Reineke, Z. L.; Finegan, J. D. & Shankland, Robert S., 1908-
Partner: UNT Libraries Government Documents Department
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Reaction of Graphic with Sodium

Description: Most of the publications in the open literature available to us agree that sodium does not readily react with graphite, though potassium, rubidium, and cesium readily enter between the planes of the graphite lattice. In view of the conflicting evidence available, it seems inadvisable without very extensive further study to consider the use of graphite in direct contact with liquid sodium, except under very mild conditions of temperature and irradiation, and then only with very pure sodium and c… more
Date: June 19, 1952
Creator: Montet, G. L.
Partner: UNT Libraries Government Documents Department
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Effect of Correlations on the Equation of State of an Electron Gas

Description: An attempt to apply quantitatively the equation of state of a free electron gas to relatively low temperatures in order to emphasize correlation effects.
Date: January 14, 1955
Creator: Ferrell, Richard
Partner: UNT Libraries Government Documents Department
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High-Energy Electron Scattering and the Charge Distribution of Selected Nuclei

Description: Experimental results are presented of electron scattering by Ca, V, Co, In, Sb, Hf, Ta, W, Au, Bi, Th, and U, at 183 Mev and (for some of the elements) at 153 Mev. For those nuclei for which asphericity and inelastic scattering are absent or unimportant, i.e., Ca, V, Co, In, Sb, Au, and Bi, a partial wave analysis of the Dirac equation has been performed in which the nuclei are represented by static, spherically symmetric charge distributions. Smoothed uniform charge distributions have been ass… more
Date: October 1955
Creator: Hahn, Beat & Ravenhall, D. G.
Partner: UNT Libraries Government Documents Department
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Progress Report. Part I. [Isotope Encephalometry]. Part II. Progress and Plans in the Development of a Scanning Scintillation Coincidence Isotope-Encephalometer

Description: Sixty-nine cases of suspected brain lesions were studied with both routine isotope encephalometry and the graphic method of analysis. Of thirty-two space occupying lesions, 68.7% were correctly diagnosed by both means, while 18.8% were negative with the routine method but were positive with the graphic method. The overall accuracy of locating a tumor when present was 87.5%. The proposed design for a scanning scintillation coincidence isotope-encephalometer is discussed.
Date: December 1955
Creator: French, Lyle A.
Partner: UNT Libraries Government Documents Department
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A Timing Circuit for the UCLA FM Cyclotron

Description: A circuit had been constructed which supplied timing pulses for the various operating components of the UCLA F.M. cyclotron as well as counter gating pulses of variable widths and adjustable positions on the cyclotron duty cycle. The pulses are timed relative to a master pulse generated when the cyclotron oscillator passes through a specified frequency in the direction of decreasing frequency, thus giving only one master pulse per duty cycle. Overall stability of the timing circuit is about one… more
Date: January 1956
Creator: Jensen, Louis K.
Partner: UNT Libraries Government Documents Department
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Effects of X-Irradiation on the Plasmas of Chickens as Revealed by Serological Analysis. Part I, Whole Plasma Comparisons. Part II, Alteration of Proteins of the Liver (a Preliminary Report). Part III, Autoantibody Formation (a Preliminary Report)

Description: Irradiation of a living animal with X-rays induces alternation in the proteins of cells in which ionization events occur. Systematic end-products such as the proteins of plasma would, by changes in quality and quantity divulge modification of their synthetic pathways, or compensatory responses of the hematopoietic systems to stresses caused by irradiation in other organs. Serological identification of proteins, a sensitive means of biochemical characterizations was chosen to reveal variations i… more
Date: 1955
Creator: Leone, Charles A.
Partner: UNT Libraries Government Documents Department
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Proposal for Further Studies on Lung Hazards from Inhalation of Insoluble Radioactive Particulate Matter. Summary Report for Year of July 15, 1953 to July 14, 1954.

Description: Rats were exposed, by inhalation and intratracheal insufflation, to soluble and insoluble particles of uniform size but varying specific activity. The same number of particles was administered in each case, thus making the doses proportional to the specific activity per particle. The insoluble particles consisted of barium sulfate , while the soluble particles were sodium sulfate. Neither of these compounds is chemically toxic in the quantities used in these experiments. The radiation is due to… more
Date: 1955
Creator: Cember, Herman
Partner: UNT Libraries Government Documents Department
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Some Effects of Irradiation on the Immunochemical and Physicochemical Identity of Serum Proteins of Rats

Description: That body proteins may be altered by irradiation to such as extent as to react as foreign elements and perhaps antagonists in their own physiological environment is postulated. The plausibility of this concept was examined. The serological activity of hemocyanin isolated from the sera of the American lobster, as measured by the quantitative, turbidimetric precipitin reaction, was found to be altered by in vitro x irradiation. Beta particles from internally deposited P32 produced chronic changes… more
Date: 1955
Creator: Dolyak, Frank
Partner: UNT Libraries Government Documents Department
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Free Convection in the SIR Mark A Rotating Plugs

Description: This technical report is intended as a brief description of the free convection problem existing in the various annuli of the SIR Mark A rotating plugs. It is by no means a complete report of the plug "hot tests", but merely records some of the more significant experimental observations and presents a few of the theories and calculations made to explain the observed free convection phenomenon. The general discussion which follows is chronological. Details of analyses are relegated to the Appen… more
Date: November 12, 1953
Creator: Timo, D. P.
Partner: UNT Libraries Government Documents Department
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The Grüneisen Parameter for an Einstein Solid and Under Finite Strain

Description: The Grüneisen constant, as evaluated from the equation of state, is obtained for an Einstein solid. the presence of a state of finite hydrostatic pressure is taken into account explicitly by means of Murnaghan's theory of finite strain, to obtain the Grüneisen parameter's on the Debye and Einstein models. Results are identical in the two cases with the corresponding values obtained without use of the formal theory of finite strain.
Date: September 26, 1955
Creator: Gilvarry, J. J. (John James), 1917-
Partner: UNT Libraries Government Documents Department
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Liquid Metal Level Instrument

Description: Theory of operation and test results are given for a resistance type of liquid metal level instrument. The voltage across a steel rod in the tank is amplified by a magnetic amplifier and indicated by a milliammeter. Temperature compensation is provided for tank temperatures up to 1000 F.
Date: March 18, 1952
Creator: Robinson, H.; Dows, L. H. & Droms, C. R.
Partner: UNT Libraries Government Documents Department
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